Properties of the Number 75706

Seventy-Five Thousand Seven Hundred Six

Basics

Value: 75705 → 75706 → 75707

Parity: even

Prime: No

Previous Prime: 75703

Next Prime: 75707

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 × 37853

Divisors: 1, 2, 37853, 75706

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10010011110111010

Octal: 223672

Duodecimal: 3798A

Hexadecimal: 127ba

Square: 5731398436

Square Root: 275.14723331336626

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Number of numbers expressible as b(1)*b(2)*...*b(n) with 1 <= b(i) <= i for each i. A345882

If n = 0 or 1 then a(n) = 1; if n = 2, 3 or 4 then a(n) = 0; otherwise a(n) = (n+1)*a(n-1)-(n-2)*a(n-2)-(n-5)*a(n-3)+(n-3)*a(n-4). A85372

Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 61. A31649

Safe primes (A005385) (p and (p-1)/2 are primes) such that 8·p+1 (A023228) is also prime. A75706